Default [Q] Nexus 7 (2012 wifi) Update to 4.4.2 error

Hey guys.
Finally the 4.4.2 update arrived at my nexus last night.
So today i tried to install it and everything seemed good till suddenly i get a screen with a red android logo writing "error".
No other indications what so ever. Not even like error 243 or something.

My nexus is rooted but i haven't flashed any custom rom in it. Just using the stock one.
This error shouldn't have happened. Especially on a stock rom.
I've rerooted my tablet after an update like 3 times till now and i didn't have any problems what so ever.

Any suggestions